3D printing equipment and pickup system thereof

Abstract

According to the 3D printing equipment and the piece taking system thereof, a plurality of through holes are formed in a construction plate, and a piece removing mechanism capable of ascending and descending along with a Z-axis moving mechanism is arranged, so that when the piece removing plate moves to the piece removing position, an ejector block on the piece removing plate penetrates through the through holes and protrudes out of a construction plane to eject and remove a 3D component; through the arrangement of the part receiving mechanism and the part receiving driving device, the part receiving assembly can rotate from the first position avoiding printing to the second position for bearing the component when the part stripping plate is located at the part stripping position, and therefore automatic ejection stripping and automatic bearing of the 3D component from the construction plate are achieved; compared with the prior art, the equipment shutdown and operation time needed by traditional manual part taking is shortened, the part taking efficiency and the automation degree of printing equipment are remarkably improved, the problems of damage and edge warping of the 3D component caused by manual stripping are solved, and the situation that the 3D component falls into a container accidentally after falling off and pollutes a light curing material is effectively prevented.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and more particularly to a 3D printing device and its part retrieval system. Background Technology

[0002] Photopolymer 3D solid printing technology is a type of rapid prototyping technology. It typically uses liquid photosensitive resin, photosensitive polymer, and other materials as curing materials. The printed model is divided into multiple cross-sectional layers, and then the solid is built by printing layer by layer. Due to its high forming accuracy, it has a wide range of applications in molds, customized products, medical devices, prostheses, and other fields.

[0003] Photopolymer 3D printing equipment includes two main types: top-exposure 3D printing equipment and bottom-exposure 3D printing equipment. Both top-exposure and bottom-exposure 3D printing equipment include a build plate, on which a cumulative curing layer is attached to the build surface to form a 3D component.

[0004] After 3D printing is completed, the 3D component needs to be removed. Existing removal methods typically rely on manual operation, such as manually peeling the 3D component from the build surface using a scraper. However, this method is not only inefficient, but also prone to warping or damage due to stress concentration, affecting the quality of the removed component. Furthermore, during the peeling process, there is a risk that the 3D component may accidentally detach and fall into the photocurable material inside the container, potentially causing damage or contamination to the component itself and the material, affecting subsequent printing operations. Simultaneously, existing removal processes usually require a complete shutdown of the printing equipment and manual intervention, which increases operational complexity, interrupts the continuity of printing operations, and reduces overall printing efficiency. Therefore, providing a removal system that can be efficiently integrated with the 3D printing process, ensuring both quality removal and high printing efficiency with a high degree of automation, is a technical problem urgently needing to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the above-mentioned related technologies, the purpose of this application is to provide a solution to the technical problem in the above-mentioned related technologies that it is difficult to ensure the quality of part removal while taking into account printing efficiency and the degree of automation of part removal.

[0006] To achieve the above and other related objectives, a first aspect of this application provides a part-retrieving system for a 3D printing device. The 3D printing device includes a container and a Z-axis moving mechanism, a build plate, a mounting base fixed to the Z-axis moving mechanism, a build plane for forming 3D components, and a mounting structure for cooperating with the mounting base. The build plane has multiple through holes. A part-retrieving mechanism is disposed between the build plate and the mounting base, and can move up and down following the Z-axis moving mechanism. This mechanism includes a part-retrieving plate disposed on the back of the build plane and having multiple top blocks. When the part-retrieving plate moves to the part-retrieving position, the top blocks pass through the through holes and protrude from the build plane to detach the 3D component. A part-receiving mechanism is disposed between the part-retrieving mechanism and the container, including a part-receiving assembly and a part-receiving drive device for driving the part-receiving assembly to rotate between a first position and a second position. When the part-retrieving plate is in the part-retrieving position, the part-receiving assembly can switch from the first position (which does not interfere with the printing operation) to the second position to receive the detached 3D component.

[0007] A second aspect of this application provides a 3D printing apparatus, comprising: a container for holding photocurable material; a part-retrieving system as described in any embodiment of the first aspect of this application, including a build plate for forming a 3D component; a Z-axis moving mechanism for driving the build plate to move in the Z-axis direction to adjust the gap between the build plate and the printing reference surface; an energy radiation system for irradiating the photocurable material filling the gap to obtain a cured layer; and a control device connected to the Z-axis moving mechanism, the energy radiation system, and the part-retrieving system for controlling the Z-axis moving mechanism and the energy radiation system to work together to attach the cumulatively cured 3D component to the build plane, and controlling the part-retrieving system to eject and receive the 3D component after printing.

[0008] In summary, the 3D printing equipment and its part-removal system provided in this application, by opening multiple through holes on the build plate and setting a part-removal mechanism that can be raised and lowered with the Z-axis moving mechanism, allows the top block on the part-removal plate to pass through the through holes and protrude from the build plane to remove the 3D component when the part-removal plate moves to the part-removal position. By setting a part-receiving mechanism and a part-receiving drive device, the part-receiving assembly can rotate from the first position of avoiding printing to the second position of receiving the component when the part-removal plate is in the part-removal position. This achieves automatic removal and automatic reception of the 3D component from the build plate, which not only shortens the equipment downtime and operation time required for traditional manual part removal, significantly improves part-removal efficiency and the automation level of the printing equipment, avoids damage and warping of 3D components caused by manual peeling, but also effectively prevents the 3D component from accidentally falling into the container after being removed and contaminating the photocurable material. Attached Figure Description

[0009] The specific features involved in this application are shown in the appended claims. The features and advantages of the invention can be better understood by referring to the exemplary embodiments and accompanying drawings described in detail below. A brief description of the drawings is as follows:

[0010] Figure 1 The diagram shown is a block diagram of a 3D printing apparatus in one embodiment of this application.

[0011] Figure 2 and Figure 3 The diagrams shown are schematic representations of the retrieval system in different embodiments of this application.

[0012] Figures 4 to 8 These are schematic diagrams showing the construction of the plane in different embodiments of this application.

[0013] Figure 9 The diagram shown is a partially enlarged schematic of the plane constructed in one embodiment of this application.

[0014] Figure 10 The diagram shown is a schematic representation of the ejector plate in its initial position in one embodiment of this application.

[0015] Figure 11 The diagram shown is a schematic representation of the ejector plate being located at the ejector position in one embodiment of this application.

[0016] Figure 12 The diagram shown is a structural schematic of the ejector plate in one embodiment of this application.

[0017] Figure 13 The diagram shown is a partially enlarged view of the ejector plate in the ejector position in one embodiment of this application.

[0018] Figure 14 The diagram shown is a structural schematic of the strip plate in one embodiment of this application.

[0019] Figure 15 The diagram shown is a structural schematic of the elastic element in one embodiment of this application.

[0020] Figure 16 This application is displayed. Figure 2 The schematic diagram shown illustrates the connector assembly in the first position in the embodiment.

[0021] Figure 17 This application is displayed. Figure 3 The schematic diagram shown illustrates the connector assembly in the first position in the embodiment.

[0022] Figure 18 This application is displayed. Figure 2 The schematic diagram of the connector driving structure in the embodiment shown is shown.

[0023] Figure 19 This application is displayed. Figure 3 The schematic diagram of the connector driving structure in the embodiment shown is shown.

[0024] Figure 20 This application is displayed. Figure 2 A schematic diagram of the connector assembly in the illustrated embodiment.

[0025] Figure 21 This application is displayed. Figure 3 A schematic diagram of the connector assembly in the illustrated embodiment.

[0026] Figure 22 This application is displayed. Figure 21 The illustrated embodiment shows a schematic diagram of the disassembled structure of the connector body.

[0027] Figure 23 This application is displayed. Figure 2 A schematic diagram of the linkage assembly in the illustrated embodiment.

[0028] Figure 24 This application is displayed. Figure 3 A schematic diagram of the linkage assembly in the illustrated embodiment. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand the advantages and technical effects of this application from the content disclosed in this specification. In the following description, some embodiments may be referenced to the accompanying drawings. It should be understood that other embodiments not shown in the drawings may also be used, and changes in specific structures, parts or mechanisms, components, and operations may be made without departing from the spirit and scope of this application. The following detailed description should not be considered limiting, and the scope of the embodiments of this application is limited only by the claims published in this application. The terminology used herein is for describing particular embodiments only and is not intended to limit this application.

[0030] It should be understood that although the terms first, second, or third, etc., may be used herein to describe various elements or parameters in some embodiments, these elements or parameters should not be limited by these terms. These terms are used only to distinguish one element or parameter from another, and not to define the order, priority, or importance of multiple elements. For example, a first position may be referred to as a second position, and similarly, a second position may be referred to as a first position, without departing from the scope of the various described embodiments.

[0031] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” and “including” indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Additionally, the term “and / or,” which may be used hereinafter, describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, the character “ / ”, unless otherwise specified, generally indicates that the preceding and following related objects have an “and / or” relationship. Additionally, in the description of embodiments of this application, “multiple” refers to two or more. Furthermore, the terms “or” and “and / or” as used herein are interpreted as inclusive, or mean either one or any combination thereof. Exceptions to this definition only arise when a combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0032] It should also be understood that when an element, such as a layer, region, or substrate, is referred to as being "on" another element or extending "on" another element, the element may be directly on or directly extending onto the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly on" another element or "directly extending onto" another element, no intermediate elements are present. It will also be understood that when an element is referred to as being "connected" or "attached" to another element, it may be directly connected or coupled to the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly connected" or "directly coupled" to another element, no intermediate elements are present. Furthermore, the term "coupled" generally means physical, mechanical, magnetic, and / or electrical coupling or connection, and in the absence of specific contrasting language, the presence of intermediate elements between coupled or associated items is not excluded.

[0033] Relative terms such as “below,” “above,” “upper,” “lower,” “horizontal,” or “vertical” may be used herein to describe the relationship between one element, layer, or region and another element, layer, or region illustrated in the figures. It will be understood that these terms are intended to cover different device orientations other than those depicted in the figures. In this application, “vertical,” “horizontal,” and “parallel” are defined as including cases within ±10% of their standard definitions. For example, vertical typically refers to an angle of 90° relative to a reference line, but in this application, vertical refers to cases including those within 80° to 100°. Unless otherwise expressly stated, comparative quantitative terms (such as “above” and “below”) are intended to cover the concept of equality. As an example, “above” can mean not only “greater than” in a mathematical sense but also “equal to.”

[0034] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It will also be understood that terms used herein shall be interpreted as having the meaning consistent with their meaning in the context of this specification and the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0035] In view of the technical problems mentioned in the background art, this application discloses a 3D printing device and its part-removal system. By opening multiple through holes on the build plate and setting a part-removal mechanism that can be raised and lowered with the Z-axis moving mechanism, when the part-removal plate moves to the part-removal position, the top block on it passes through the through holes and protrudes from the build plane to remove the 3D component. By setting a part-receiving mechanism and a part-receiving drive device, the part-receiving component can rotate from a first position that avoids printing to a second position that receives the component when the part-removal plate is in the part-removal position. This realizes the automatic removal and automatic reception of the 3D component from the build plate. It not only shortens the equipment downtime and operation time required for traditional manual part removal, but also significantly improves the part-removal efficiency and the degree of automation of the printing equipment. It avoids the damage and warping of 3D components caused by manual peeling, and effectively prevents the 3D component from accidentally falling into the container after being removed and contaminating the photocurable material.

[0036] To clarify the definition of directions and the operational methods between different structures, the embodiments disclosed in this application define a three-dimensional space defined by the horizontal, vertical, and longitudinal directions, where the horizontal, vertical, and longitudinal directions are all straight lines and mutually perpendicular. For example, the length extension direction of container 1 is defined as horizontal (as shown in the figure). Figure 2 and Figure 3 The direction of arrow X in the diagram), defines the width extension direction of container 1 as longitudinal (as shown in the diagram). Figure 2 and Figure 3The direction of the arrow Y in the diagram is used to define the vertical direction, also known as the vertical direction, the upward or downward direction, or the up or down direction (as shown in the diagram). Figure 2 and Figure 3 (The direction of arrow Z in the image).

[0037] To clearly illustrate the positional relationships between the various devices, components, structures, or mechanisms in the embodiments of this application, along the longitudinal direction of container 1, the side (or end) furthest from the Z-axis moving mechanism 3 is defined as the first side (or first end), and the side (or end) closest to the Z-axis moving mechanism 3 is defined as the second side (or second end), with the two being opposite to or far from each other. Furthermore, since the first side (or first end) is close to the hatch of the 3D printing equipment, and the second side (or second end) is far from the hatch, in subsequent embodiments, the first side (or first end) will also be referred to as the proximal side (or proximal end), and the second side (or second end) will be referred to as the distal side (or distal end). The left side of the operator facing the first side (or first end) will be referred to as the third side (or third end), and the right side of the operator facing the first side (or first end) will be referred to as the fourth side (or fourth end).

[0038] Some embodiments disclosed in this application disclose a 3D printing device. Whether based on top-exposure or bottom-exposure, both use a build plate as a platform for 3D printed components, constructing the 3D component through layer-by-layer printing. During printing, a curing material (resin liquid is a type of photocurable material, hereinafter referred to as resin liquid) is first irradiated by an energy radiation system to form a first cured layer. This first cured layer adheres to the build plate. The build plate rises or falls a predetermined distance under the action of a Z-axis movement mechanism. For example, in a bottom-exposure 3D printing device, the movement of the build plate causes the space between the build plate and the first cured layer at the bottom of the container to be filled again with the resin liquid to be cured. The energy radiation system then irradiates again to obtain a second cured layer attached to the first cured layer. This process is repeated, with multiple filling, irradiation, and separation operations accumulating the cured layers on the build plate to obtain the 3D component.

[0039] For ease of description and understanding, the following embodiments use a bottom-exposure 3D printing device as an example for illustration, and should not be construed as a limitation of this application.

[0040] Please see Figure 1 The image shown is a block diagram of a 3D printing device in one embodiment of this application, as follows: Figure 1 As shown, the 3D printing equipment includes a container 1, a part picking system 2, a Z-axis moving mechanism 3, an energy radiation system 4, and a control device 5.

[0041] In one embodiment, the container 1 is used to hold a resin liquid. The resin liquid is any liquid resin that is easily photocurable, including, for example, a simple photocurable resin liquid, or a photocurable resin liquid mixed with powder materials, etc., where the powder materials include, but are not limited to, ceramic powder or color additive powder. The material of the container 1 includes, but is not limited to, glass, plastic, and resin. The capacity of the container 1 depends on the type of 3D printing equipment. In some applications, the container is also referred to as a resin tank.

[0042] In one embodiment, the component retrieval system 2 includes a build plate 21 for attaching an irradiated and cured patterned layer to accumulate and form a 3D component. Specifically, the build plate 21 typically starts from a preset printing reference surface located within the container 1, and accumulates cured layers layer by layer on the printing reference surface to obtain the corresponding 3D component. The printing reference surface refers to the starting surface where the resin liquid is irradiated. It should be noted that the 3D component refers to a solid part with a specific three-dimensional shape formed by the layer-by-layer deposition and curing of resin liquid on the component retrieval system, such as a dental model, jewelry, or other parts. In some examples, the build plate 21 has a build plane for forming the 3D component.

[0043] In one embodiment, the Z-axis moving mechanism 3 is connected to the build plate 21 and is used to move in a controlled vertical direction to adjust the distance between the build plate 21 and the printing reference surface and to fill the resin liquid to be cured. In order to accurately control the irradiation energy of each cured layer, the Z-axis moving mechanism needs to move the build plate 21 to the point where the distance between the build plate 21 and the printing reference surface is minimized, which is the thickness of the cured layer to be cured.

[0044] In one embodiment, the Z-axis moving mechanism 3 may be configured to include a drive unit and a Z-axis moving unit. The drive unit drives the Z-axis moving unit so that the Z-axis moving unit moves the building plate 21 in a vertical direction. In one implementation, the drive unit is configured as a drive motor. Specifically, the drive unit may be controlled by control commands generated by the control device 5. In some examples, the control commands include directional commands indicating that the building plate 21 is rising, falling, or stopping. In other examples, the control commands may also include parameters such as rotational speed, acceleration, or torque to precisely control the moving distance of the Z-axis moving unit.

[0045] In one implementation, the Z-axis moving unit is configured to include a threaded rod associated with the driving unit in the vertical direction and moving guide rails disposed on both sides of the threaded rod. Correspondingly, the building plate 21 is provided with a slider connected to the moving guide rails and a nut structure connected to the threaded rod, so that the nut structure moves on the threaded rod under the drive of the driving unit, and at the same time moves the slider on the moving guide rails, thereby realizing the movement of the building plate 21 on the Z-axis moving mechanism 3.

[0046] In one embodiment, an energy radiation system 4 is disposed at the bottom of container 1 and is used to irradiate the resin liquid inside container 1 to obtain a patterned curing layer. Specifically, the energy radiation system 4 irradiates the resin liquid inside container 1 with images of each layer from printing data generated based on a sliced ​​3D model of a pre-printed 3D component to obtain the 3D component. In some applications, the energy radiation system is also referred to as an optical system.

[0047] In one embodiment, the control device 5 is connected to the part-retrieving system 2, the energy radiation system 4, and the Z-axis moving mechanism 3. It controls the coordinated operation of the energy radiation system 4 and the Z-axis moving mechanism 3 to attach and solidify a layer onto the build plane to form a 3D component. After printing, it controls the part-retrieving system 2 to detach and receive the 3D component. In another implementation, the control device 5 is an electronic device containing a processor; for example, it is a computer device, an embedded device, or an integrated circuit with a CPU.

[0048] In one example, the control device includes a processing unit, a storage unit, and multiple interface units. Each interface unit is connected to an independently packaged device, component, or mechanism within the 3D printing equipment, such as the part-picking system 2, the energy radiation system 4, and the Z-axis movement mechanism 3, and transmits data via an interface. The control device also includes at least one of the following: a prompting device, a human-machine interface device, etc. The interface unit determines its interface type based on the connected device, component, or mechanism, including but not limited to: a universal serial interface, a video interface, an industrial control interface, and a wireless communication port. The storage unit stores the printing program, and the processing unit, connected to the storage unit, controls the various components or structures within the 3D printing equipment to coordinate the printing of the 3D component when the printing program is executed.

[0049] Please see Figure 2 and Figure 3 The figures shown are schematic diagrams of the retrieval system in different embodiments of this application. Figure 2 and Figure 3 As shown, the part retrieval system 2 includes a construction plate 21, a part removal mechanism 22, and a part receiving mechanism 23.

[0050] In one embodiment, such as Figure 2 and Figure 3 As shown, the construction plate 21 is fixed to the mounting base 31 of the Z-axis moving mechanism 3. In some examples, the mounting base 31 can be connected to the Z-axis moving mechanism 3 by means of fixed connection such as screws or snaps, or by an integral molding connection. For example, in an example where the Z-axis moving mechanism 3 is configured to include a threaded rod, the mounting base 31 can be configured to include a nut seat. The nut seat cooperates with the guide grooves on both sides and the guide rails on both sides of the threaded rod so that, under the drive of the drive unit, the rotation of the threaded rod drives the nut seat to move linearly up or down along the guide rails, thereby driving the mounting base 31 to move in the vertical direction.

[0051] In one embodiment, such as Figure 2 and Figure 3 As shown, the construction plate 21 includes a mounting structure 211 for mating with the mounting base 31. Figure 2 and Figure 3 In the illustrated embodiment, the mounting structure 211 is configured to include a knob assembly, allowing the operator to install and remove the build plate 21 relative to the mounting base 31 by rotating the knob assembly clockwise or counterclockwise. In another embodiment, the mounting structure 211 may be configured to include a handle assembly, allowing the operator to install and remove the build plate 21 relative to the mounting base 31 by gripping and rotating the handle assembly. In some applications, the above embodiments facilitate the operator in removing the build plate 21 to obtain the attached 3D component. In some examples, the mounting structure 211 and the mounting base 31 are provided with interlocking guide rail structures for guiding and limiting the build plate 21 when it is installed on the mounting base 31. Of course, in other embodiments, the mounting structure 211 may also be configured with other arbitrary structures, such as a fixed structure that prevents the build plate 21 from being detached from the mounting base 31; this application does not impose any limitations on this.

[0052] In one embodiment, such as Figure 2 and Figure 3As shown, the construction plate 21 also includes a construction plane 212 for forming the 3D component. The construction plane 212 refers to the substrate that supports the 3D component, that is, the plane on the construction plate 21 on which the first cured layer is attached. Further, in this embodiment, the construction plane 212 refers to the lower surface of the construction plate 21. Specifically, during 3D printing, the photocurable material is first irradiated by an energy radiation system to form a first cured layer. The first cured layer is attached to the construction plane 212 of the construction plate 21. The construction plate 21 moves a predetermined distance under the drive of the Z-axis moving mechanism 3. Within this predetermined distance, the photocurable material to be cured is filled. The energy radiation system irradiates again to obtain a second cured layer accumulated on the first cured layer. This process is repeated, and after multiple filling, irradiation, and separation operations, each cured layer is attached and accumulated on the construction plane to obtain the 3D component.

[0053] Please see Figures 4 to 8 The figures shown are schematic diagrams illustrating the construction of the plane in different embodiments of this application. Figures 4 to 8 As shown, the construction plane 212 has multiple through holes 2121. The through holes 2121 penetrate the construction plane 212 in the vertical direction. It should be noted that the through holes 2121 can cooperate with the top block described in the subsequent embodiments to push off the 3D component formed on the construction plane 212. Please refer to the following description for details, which will not be repeated here.

[0054] In one embodiment, such as Figure 4 and Figure 6 As shown, the through holes 2121 are configured as strip-shaped holes arranged in a rectangular array extending from a first side of the constructing plane 212 toward a second side. Specifically, each through hole 2121 extends longitudinally to form an elongated opening. In the transverse direction, the multiple through holes 2121 are parallel to each other, and there is a gap between adjacent through holes 2121. Figure 4 In the illustrated embodiment, multiple through holes 2121 are evenly distributed along the same straight line in the longitudinal direction, and there is also a gap between adjacent through holes 2121. Figure 6 In the embodiment shown, there is only one through hole 2121 extending from the first side toward the second side in the longitudinal direction.

[0055] In one embodiment, such as Figure 5 As shown, the through holes 2121 are configured as staggered strip-shaped holes extending from a first side of the building plane 212 toward a second side. Specifically, in the longitudinal direction, a plurality of through holes 2121 are evenly distributed along the same straight line and there is a gap between adjacent through holes 2121. In the transverse direction, each row of through holes 2121 is staggered with each other. In some examples, Figure 4 The relatively short through hole 2121 and Figure 6The relatively long through holes 2121 can be staggered on the construction plane 212, for example, odd-numbered columns (such as the first column, the third column, etc.) can be configured as follows. Figure 6 The relatively long through-hole 2121 in the middle, and the even-numbered columns (such as the second column, the fourth column, etc.) are configured as follows: Figure 4 Multiple through holes 2121 that are relatively short and distributed along a straight line.

[0056] In one embodiment, such as Figure 7 and Figure 8 As shown, the through holes 2121 are configured as strip-shaped holes arranged in a rectangular array extending from the third side to the fourth side of the construction plane 212. Specifically, each through hole 2121 extends in the transverse direction to form an elongated opening. In the longitudinal direction, the multiple through holes 2121 are parallel to each other, and there is a gap between adjacent through holes 2121. Figure 7 In the illustrated embodiment, multiple through holes 2121 are evenly distributed along the same straight line in the transverse direction, and there is also a gap between adjacent through holes 2121. Figure 8 In the embodiment shown, there is only one through hole 2121 extending from the third side toward the fourth side in the lateral direction.

[0057] In another embodiment, the through holes 2121 are configured as staggered strip-shaped holes extending from the third side of the self-constructing plane 212 toward the fourth side. Specifically, in the transverse direction, a plurality of through holes 2121 are evenly distributed along the same straight line and are spaced apart from adjacent through holes 2121. In the longitudinal direction, each row of through holes 2121 is staggered from each other. In some examples, Figure 7 The relatively short through hole 2121 and Figure 8 The relatively long through holes 2121 can be staggered on the construction plane 212, for example, odd-numbered rows (such as the first row, the third row, etc.) can be configured as follows. Figure 8 The relatively long through-hole 2121 in the middle, and the even-numbered rows (such as the second row, the fourth row, etc.) are configured as follows: Figure 7 Multiple through holes 2121 that are relatively short and distributed along a straight line.

[0058] It should be noted that the above embodiments are merely illustrative. In practical applications, parameters such as the size of each through hole 2121, the spacing between two adjacent rows or columns of through holes 2121, the total number of through holes 2121 distributed on the construction plane 212, and the arrangement of each through hole 2121 on the construction plane 212 can be adaptively adjusted according to the size and layout of the 3D component to be printed. This application does not impose any limitations on these parameters. Of course, the through holes 2121 can also be configured as square holes, circular holes, irregular holes, or any other shape of hole structure.

[0059] Please see Figure 9The image shown is a partially enlarged schematic diagram of the plane constructed in one embodiment of this application. Figure 9 As shown, the width w of the through-hole 2121 is less than the width occupied by the 3D component on the build plane. This ensures that at least a portion of the first cured layer of the 3D component is attached to the build plane 212. In this embodiment, as... Figure 9 As shown, the interval between two adjacent through holes 2121 (including row interval d1 and column interval d2) is smaller than the width occupied by the 3D component on the construction plane. This allows the first cured layer of the 3D component to occupy both the interval of the construction plane 212 and the opening of the through hole 2121, thereby ensuring that the subsequent 3D component can be successfully ejected from the construction plate 21.

[0060] In one embodiment, such as Figure 2 and Figure 3 As shown, the ejection mechanism 22 is disposed between the building plate 21 and the mounting base 31, and can move up and down following the Z-axis moving mechanism 3. The ejection mechanism 22 includes an ejection plate 221 disposed on the back side of the building plane 212. Figure 2 and Figure 3 In the example shown, the first side of the ejector plate 221 is hinged to the first side of the construction plane 212, and the second side of the ejector plate 221 is elastically connected to the second side of the construction plane 212. In the above example, the second side of the ejector plate 221 can rotate a certain angle with the first side as the axis. Furthermore, the ejector plate 221 can rotate between an initial position and an ejection position.

[0061] Specifically, please refer to Figure 10 and Figure 11 ,in, Figure 10 The diagram shown is a schematic representation of the ejector plate in its initial position in one embodiment of this application. Figure 11 This is a schematic diagram showing the ejector plate in the ejection position in one embodiment of this application. The ejector plate 221 is... Figure 10 Rotate clockwise from the initial position shown. Figure 11 When the part is removed as shown, the 3D component formed on the construction plane 212 can be ejected.

[0062] Please see Figure 12 The image shown is a schematic diagram of the ejector plate in one embodiment of this application. Figure 12As shown, the ejector plate 221 includes a plate body 2211, a first connecting assembly 2212, and a second connecting assembly 2213. The plate body 2211 is located on the back side of the construction plane 212. In the embodiments of this application, the side of the construction plane 212 used to form the 3D component is defined as the front side, and the side away from the front side is defined as the back side. Further, the first connecting assembly 2212 is located on the first side of the plate body 2211 and is used to hinge the plate body 2211 to the first side of the construction plane 212. The second connecting assembly 2213 is located on the second side of the plate body 2211 and is used to elastically connect to the second side of the construction plane 212.

[0063] In one embodiment, such as Figure 12 As shown, the ejector plate 221 has multiple top blocks 22111 as described in the previous embodiment on its plate body 2211. These top blocks 22111 are used to pass through the through holes 2121 and protrude from the construction plane 212 to eject the 3D component. When the ejector plate 221 is in the initial position, the plate body 2211 has a certain angle with the construction plane 212, at which time the top blocks 22111 are away from the construction plane 212. When the ejector plate 221 is in the ejection position, the plate body 2211 and the construction plane 212 are parallel to each other and in close contact (meaning there is no gap structurally obstructing the top blocks 22111 from entering the through holes 2121), so that each top block 22111 corresponds to and passes through the through holes 2121. Please refer to... Figure 13 The image shown is a partially enlarged schematic diagram of the ejector plate in the ejector position in one embodiment of this application. Figure 13 As shown, the bottom of each top block 22111 is lower than the lower surface of the building plane 212, so that the top block 22111 can form multiple evenly distributed contact points on the first cured layer of the 3D component. The top block 22111 applies a uniform downward lifting force to the 3D component through its own protrusion height relative to the building plane 212, so that the entire 3D component is subjected to uniform force during lifting, thereby reducing the risk of warping, cracking or local damage.

[0064] Furthermore, the top block 22111 rotates with the plate 2211 around the first connecting component 2212 to protrude from the construction plane 212. This means that the protrusion of the top block 22111 is not integral, but rather gradually protrudes from the first side to the second side of the construction plane 212. This detachment method ensures that the peeling of the 3D component relative to the construction plane is done gradually from the edge of the 3D component, thereby effectively reducing the concentrated stress on the first cured layer of the 3D component during the detachment process and ensuring the quality of the peeling.

[0065] In one embodiment, the number and position of the top block 22111 correspond to the number and position of the through holes 2121. For example, the through holes 2121 are configured as follows: Figure 4In the example shown of a strip-shaped aperture arranged in a rectangular array extending from the first side of the self-constructing plane 212 toward the second side, the top block 22111 is configured as follows: Figure 12 The ridges shown extend from the first side of plate 2211 toward the second side in a rectangular array. The through-hole 2121 is configured as follows: Figure 5 In the example shown, where the top blocks 22111 are staggered on the construction plane 212, the top blocks 22111 are correspondingly staggered on the plate 2211. In the example where five through holes 2121 are provided along the same straight line on the construction plane 212, five top blocks 22111 are also provided along the corresponding straight line on the plate 2211. This embodiment ensures that each top block 22111 can sequentially enter the corresponding through hole 2121 and protrude from the construction plane 212 when the ejector plate 221 is located at the ejection position, thereby guaranteeing the ejection effect. Furthermore, this method of cooperating between the top blocks 22111 and the through holes 2121 can be adapted to the ejection of 3D components of different sizes. In addition, when the ejector plate 221 is located at the ejection position, all 3D components attached to the construction plane 212 can be ejected simultaneously. That is, a single displacement of the ejector plate 221 can achieve a one-time ejection of the 3D component, thereby improving the ejection efficiency of the 3D component.

[0066] In one embodiment, such as Figure 13 As shown, the height h of the top block 22111 near the first side of the plate 2211 gradually increases from the first side toward the second side. Figure 12 and Figure 13 As shown, the top block 22111 located at the leftmost end of the plate 2211 is generally trapezoidal. The first and second sides of the top block 22111 are connected by an inclined section and a planar section smoothly connected to the inclined section. It should be understood that the ejector plate 221 rotates about the first side of the constructing plane 212 as an axis to... Figure 10 The initial position shown and Figure 11 The ejection positions are switched as shown. Therefore, during the rotation of the ejection plate 221 around the first side of the building plane 212, the top block 22111, which is closer to the first side, will first approach the through hole 2121. If the top block has a uniform height structure, it may be too close to the building plane 212 when the ejection plate 221 is in the initial position, thus causing interference during the forming process of the 3D component. If the height of the top block is reduced overall, it will not be able to fully pass through the through hole 2121 and protrude from the building plane 212 when the ejection plate 221 rotates to the ejection position, so as to achieve effective ejection.

[0067] Based on this, this embodiment designs the top block 22111 located on the first side of the plate as a trapezoidal structure with its height gradually increasing from the first side to the second side and transitioning from a sloped section to a flat section. This ensures that, in its initial position, the lower height of the top block 22111 near the first side, combined with the sloped section, keeps it away from the opening area of ​​the through hole 2121, thus avoiding interference with the 3D component being printed. When the ejector plate 221 rotates to the ejection position, the higher second side of the top block 22111 and its flat section can smoothly pass through the through hole 2121 and stably protrude from the building plane 212, achieving a reliable ejection action. In some examples, the sloped section and the flat section are connected by a slightly curved surface or rounded corners to avoid damaging the 3D component during ejection.

[0068] In one embodiment, such as Figure 12 As shown, the ejector plate 221 has a plate body 2211 configured to include a plurality of strip plates 22110 spaced laterally on a first side of the ejector plate 221, and top blocks 22111 spaced longitudinally on the strip plates 22110. Specifically, the strip plates 22110 are laterally disposed on the support portion of the first connecting assembly 2212 of the ejector plate 221, as described in subsequent embodiments, and will not be repeated here. Please refer to... Figure 14 The image shown is a schematic diagram of the structure of the strip plate in one embodiment of this application. Figure 14 As shown, the strip plate 22110 has a first mounting hole at its first end and a second mounting hole at its second end. The strip plate 22110 is fixedly connected to the first connecting assembly 2212 through the first mounting hole, and simultaneously fixedly connected to the second connecting assembly 2213 through the second mounting hole. In some examples, the top block 22111 is integrally formed on the underside of the strip plate 22110. In this embodiment, by configuring the plate body 2211 to include multiple strip plates 22110, the overall weight of the plate body 2211 can be reduced, thereby reducing the pushing resistance when the ejector plate 221 switches from the initial position to the ejector position, allowing the 3D component to be ejected more smoothly from the building plane 212.

[0069] In another embodiment, the plate 2211 can also be configured as a one-piece plate structure. In this embodiment, the first connecting component 2212 and the second connecting component 2213 can be directly formed on the first and second sides of the one-piece plate structure. In some examples, the one-piece plate structure can be provided with a grid-like or honeycomb-like perforated structure, thereby reducing the overall weight of the plate 2211.

[0070] In one embodiment, a buffer structure, such as a rubber pad, can be provided at the bottom end of the plate 2211, away from the top block 22111. This buffer structure absorbs the contact impact of the plate 2211 on the construction surface 212 when the ejector plate 221 is in the ejection position, thereby effectively protecting the plate 2211 and the construction surface 212. Alternatively, the buffer structure can also be positioned at the top of the construction surface 212, away from the through hole 2121, as long as it provides a buffering effect.

[0071] In one embodiment, such as Figure 12 As shown, the first connecting component 2212 includes a support portion 22121 and a rotating shaft 22122. The support portion 22121 is fixed to the back of the construction plane 212, and the rotating shaft 22122 is horizontally disposed on the support portion 22121 and connected to the plate body 2211. In an embodiment where the plate body 2211 is configured to include multiple strip plates 22110, the support portion 22121 is configured as a beam-like structure extending in the transverse direction. Multiple first mounting slots are spaced apart on the beam-like structure, and the first mounting slots are used to correspondingly mount the first ends of each strip plate 22110. Further, a through hole for mounting the rotating shaft 22122 is transversely provided on the beam-like structure. When the plate body 2211 is mounted on the support portion 22121 through the first mounting slot, the first mounting hole at the first end of the plate body 2211 corresponds to the through hole, thereby facilitating the passage of the rotating shaft 22122. In some examples, the bottom surface of the support 22121 can be fixedly connected to the back surface of the construction plane 212 by means of screwing, bonding or integral molding, so that when the ejector plate 221 switches between the initial position and the ejector position, the strip plate 22110 included in the plate body 2211 can rotate relative to the support 22121 and around the pivot 22122.

[0072] In some other embodiments, the first connecting component 2212 may also be configured as a hinge structure or a gear structure, as long as it enables the plate 2211 to rotate relative to the building plane 212, so that the top block 22111 on the plate 2211 can pass through or out of the through hole 2121. This application does not impose any limitations on this. It should be noted that the ejector plate 221 may also translate relative to the building plane 212 in the lifting direction. For example, when the ejector plate 221 descends relative to the building plane 212, the top block 22111 can pass through the through hole 2121 and protrude from the building plane 212; when the ejector plate 221 rises relative to the building plane 212, the top block 22111 can move away from the through hole 2121. In this example, the initial position of the ejector plate 221 is parallel to and away from the building plane 212. The above examples are merely illustrative and should not be construed as limiting this application.

[0073] In one embodiment, the second connecting component 2213 is used to elastically connect to a second side of the construction plane 212 via the elastic component 222, allowing the plate 2211 to rotate about the first connecting component 2212 to switch between the ejection position and the initial position. For example, when the second connecting component 2213 drives the plate 2211 to rotate clockwise about the pivot 22122, the ejection plate 221 can be positioned at... Figure 11 The ejection position is shown. When the second connecting assembly 2213 drives the plate to rotate counterclockwise around the rotating shaft 22122, the ejection plate 221 can be positioned at... Figure 10 The initial position is shown. Further, the process of the ejector plate 221 switching from the ejection position to the initial position is accomplished by the elastic restoring force of the elastic element 2222 included in the elastic component 222. The specific structure and function of the elastic component 222 and the elastic element 2222 can be found in the descriptions of subsequent embodiments, and will not be repeated here.

[0074] In one embodiment, such as Figure 12 As shown, the second connecting assembly 2213 includes an integrally formed first connecting portion 22131 and a second connecting portion 22132. The first connecting portion 22131 is used to fix the second side of the connecting plate 2211, and the second connecting portion 22132 is used to movably connect the elastic member 2222. In some examples, the first connecting portion 22131 may also be configured as a beam-like structure with second mounting grooves spaced laterally on it. The second mounting grooves are used to embed the second end of the strip plate 22110 of the plate 2211. In other examples, the first connecting portion 22131 may be configured as a plate-like or block-like base and fixed to the second side of the plate 2211 by means of screws, riveting, or welding. In some examples, such as Figure 12 As shown, the second connecting portion 22132 is configured to include two lug structures integrally formed on the second side of the first connecting portion 22131, and the lug structures are provided with shaft holes for mounting the elastic member 2222. In this embodiment, the contact surface of the second connecting portion 22132 is a beveled guide surface.

[0075] In one embodiment, such as Figure 10 and Figure 11As shown, the ejection mechanism 22 further includes an elastic component 222, which is disposed on the second side of the construction plane 212. The elastic component 222 includes a frame 2221 fixed to the construction plane 212 and an elastic element 2222 disposed on the frame 2221. The elastic element 2222 is used to drive the ejection plate 221 to open relative to the construction plane 212 and return to its initial position through elastic restoring force. In this embodiment, the elastic element 2222 provides an elastic driving force for the ejection plate 221 to switch from the ejection position to the initial position. Specifically, when the ejection plate 221 switches from the initial position to the ejection position, the elastic element 2222 is forced to deform to generate the elastic restoring force. After the 3D component is ejected, the elastic restoring force of the elastic element 2222 will drive the ejection plate 221 to rotate in the opposite direction, causing the ejection plate 221 to automatically open and return to its initial position. Figure 10 The initial position is shown.

[0076] In one embodiment, the frame 2221 may be integrally stamped or assembled from multiple components, and can be fixedly connected to the back of the construction plane 212, for example by screwing, riveting, or welding, thereby providing a stable mounting base for the elastic element 2222. In some examples, the frame 2221 may be made of metal. Please refer to [link to relevant documentation]. Figure 15 The diagram shows a structural schematic of the elastic element in one embodiment of this application. Figure 15 As shown, the frame 2221 has a hole structure 22211 for inserting the elastic member 2222. In some examples, the hole structure 22211 is configured as an elongated strip extending from a first side of the frame 2221 toward a second side to accommodate the longitudinal displacement of the elastic member 2222 relative to the frame 2221 when it rotates with the second connecting portion 22132.

[0077] In one embodiment, such as Figure 15As shown, the elastic element 2222 includes a fixing pin 22221 and a spring portion 22222. The fixing pin 22221 is connected to the second connecting portion 22132 via a pin 2223, and the spring portion 22222 is sleeved on the fixing pin 22221. In this embodiment, the fixing pin 22221 and the spring portion 22222 can pivot or slightly oscillate around the pin 2223 at the second connecting portion 22132, allowing the elastic element 2222 to automatically adjust its angle with the rotation of the second connecting portion 22132, thereby conforming to the trajectory changes of the ejector plate 221 during rotation. In some examples, the spring portion 22222 can be configured as a helical tension spring, a helical compression spring, or other elastic element. In this embodiment, the hole structure 22211 is used to allow the fixing pin 22221 to pass through while simultaneously stopping the spring portion 22222. At this point, the elongated hole structure 22211 allows the fixing pin 22221 to move freely within the hole in the longitudinal direction without interference. Simultaneously, in the transverse direction, the edge of the hole structure 22211 provides a limiting effect on the elastic part 22222. In other words, although the fixing pin 22221 can pass through the hole structure 22211, the outer diameter of the elastic part 22222 is larger than the width of the hole structure 22211, thus being stopped by the edge of the hole structure 22211.

[0078] In one embodiment, the elastic portion 22222 is limited by the second connecting portion 22132 and the frame 2221 when the plate 2211 is in the ejection position, thereby generating the elastic restoring force that pushes the plate 2211 away from the construction plane 212. Specifically, when the ejection plate 221 rotates to Figure 11 When the part is removed as shown, the elastic part 22222 reaches its maximum deformation state (that is, the elastic part 22222 can no longer be compressed / stretched in this direction and enters the maximum deformation state), and is simultaneously limited by the end face of the second connecting part 22132 and the hole structure 22211 of the frame 2221. At this time, the elastic potential energy stored inside the elastic part 22222 drives it to push the second connecting part 22132 to move in a direction away from the construction plane 212, that is, drive the removal plate 221 to rotate back to the initial position.

[0079] In one embodiment, such as Figure 2As shown, the Z-axis moving mechanism 3 includes a pair of cantilever arms 32, which are fixedly positioned at a preset location. These cantilever arms 32 are used to contact the second side of the ejector plate 221 when the Z-axis moving mechanism 3 lifts the build plate 21, thereby switching the ejector plate 221 to the ejection position. The preset location refers to a specific spatial position predetermined on the Z-axis moving mechanism 3 according to the structural layout of the 3D printing equipment and the ejection requirements. Specifically, the process of the ejector plate 221 moving from its initial position to the ejection position is triggered by the cantilever arms 32 pushing the ejector plate 221 at the preset location, while the process of the ejector plate switching from the ejection position to its initial position is triggered by the elastic restoring force of the elastic part 22222 when the cantilever arms 32 leave the ejector plate 221. In one example, the contact end between the cantilever arms 32 and the ejector plate 221 can be set to an arc shape or a buffer pad can be added to avoid impact during the ejection process, which could lead to localized wear.

[0080] Specifically, during the 3D printing process, multiple 3D components are attached to the build plate 21 of the part-retrieving system 2 on the build plane 212. After printing, the Z-axis moving mechanism 3 drives the build plate 21 to gradually rise along the Z-axis and move towards the cantilever 32. When the build plate 21 rises to the preset position of the cantilever 32, the cantilever 32 contacts the second connecting assembly 2213 of the part-retrieving plate 221 and applies a thrust to rotate the part-retrieving plate 221 around the first connecting assembly 2212, thereby allowing the part-retrieving plate 221 to rotate around the first connecting assembly 2212. Figure 10 The initial position shown has been switched to Figure 11 The indicated detachment position allows the top block 22111 on the plate 2211 to pass through the through hole 2121 and protrude from the construction plane 212, thereby detaching the 3D component attached to the construction plane.

[0081] After the ejection action is completed, the construction plate 21 continues to rise or fall along a predetermined path to move away from the cantilever 32, at which point the cantilever 32 is no longer in contact with the ejection plate 221. Under the action of the elastic component 222, the ejection plate 221 is driven by the elastic restoring force provided by the elastic part 22222 to rotate in the opposite direction around the first connecting component 2212, thus removing the plate 2211 from... Figure 11 The part removal position shown is reset to Figure 10 The initial position shown simultaneously moves the top block 22111 away from the through hole 2121 and away from the build plane 212, avoiding interference with subsequent printed layers or newly attached 3D components. The above process can be repeated under the control of the control device 5. That is, after each cumulative curing of the printed layer, the control device 5 controls the build plate 21 to rise, triggering the ejector plate 221 to switch to the ejector position to eject the 3D component. After the ejector action is completed and the cantilever 32 is removed, the elastic restoring force automatically resets the ejector plate 221 to the initial position, preparing for the next printing cycle or ejector action, thereby realizing an automated and smooth 3D component peeling and build plate reset process.

[0082] In one embodiment, such as Figure 2 and Figure 3 As shown, the receiving mechanism 23 is disposed between the ejection mechanism 22 and the container 1. In this embodiment, the receiving mechanism 23 works in conjunction with the ejection mechanism 22, such that when the building block 21 is printing, the ejection mechanism 22 is located at the initial position of the top block 22111 away from the through hole 2121, and the receiving mechanism 23 is located at a position away from the building block 21 that does not interfere with the printing operation (i.e., the first position described in subsequent embodiments); and when ejection is performed after printing, the ejection mechanism 22 is located at the ejection position where the top block 22111 passes through the through hole 2121, and the receiving mechanism 23 is located at a position that can receive the ejected 3D component (i.e., the second position described in subsequent embodiments).

[0083] In one embodiment, such as Figure 2 and Figure 3 As shown, the receiving mechanism 23 includes a receiving assembly 231 and a receiving drive device 232, the receiving drive device 232 being used to drive the receiving assembly 231 to rotate between a first position and a second position. When the ejector plate 221 is in the ejection position, the receiving assembly 231 can switch from the first position without interfering with the printing operation to the second position to receive the ejected 3D component. Moreover, when the ejector plate 221 is in the initial position, the receiving assembly 231 is in the first position away from the build plane 212.

[0084] It should be noted that the first position refers to the position where the receiving assembly 231 completely avoids the molding area of ​​the building plane 212 and the internal area of ​​the container 1 in the vertical direction, so that when the receiving assembly 231 is in this position, no structure or component of it will block the energy radiation device from irradiating the building plane 212, nor will it hinder the lifting and lowering movement of the building plate 21. Please refer to Figure 16 and Figure 17 ,in, Figure 16 This application is displayed. Figure 2 The schematic diagram shown illustrates the connector assembly in the first position in the embodiment. Figure 17 This application is displayed. Figure 3 The illustrated embodiment shows a schematic diagram of the connector assembly located in the first position. Figure 16 and Figure 17 In the example shown, the receiving assembly 231 is folded along the sidewall of the first side of the container 1 when it is in the first position. In other examples, the receiving assembly 231 may be in any folded, side-mounted, or folded state when it is in the first position, as long as it does not interfere with the printing operation.

[0085] The second position refers to the location where the receiving assembly 231 faces the construction plane 212, thus accommodating the 3D component that is detached from the construction plane 212. In this position, the 3D component naturally falls into the receiving assembly 231 under its own weight, without falling into the container 1. The second position is specifically as follows: Figure 2 and Figure 3 The meaning is shown. In Figure 2 In the example shown, the connector assembly 231 faces the building plane 212 and has a certain angle to guide the 3D component to slide into a collection structure, such as a collection box. Figure 3 In the example shown, the connector assembly 231 can be deployed generally horizontally facing the construction plane 212.

[0086] Specifically, after a printing cycle is completed, the ejector mechanism 22 rises under the drive of the Z-axis moving mechanism 3 to contact the cantilever 32, so that the ejector plate 221 is positioned at... Figure 11 The demolding position shown indicates that the 3D component is demolded from the top, at which point the receiving assembly 231 is located... Figure 2 or Figure 3 The second position shown is for receiving the detached 3D component. During the next printing cycle, the ejection mechanism 22 moves away from the cantilever 32 under the influence of the Z-axis movement mechanism 3, so that the ejection plate 221 is positioned... Figure 10 The initial position shown indicates that the connector assembly 231 is located at this position. Figure 16 or Figure 17 The first position shown is to avoid interfering with the printing job.

[0087] In one embodiment, such as Figure 16 and Figure 17 As shown, the receiving drive device 232 includes a support frame 2321, a receiving drive structure 2322, and a linkage assembly 2323. The support frame 2321 spans the third and fourth sides of the container. The receiving drive structure 2322 is vertically and vertically mounted on the Z-axis moving mechanism 3. The linkage assembly 2323 is associated with the support frame 2321, the receiving assembly 231, and the receiving drive structure 2322, and is used to convert the lifting motion of the receiving drive structure 2322 into the rotational motion of the receiving assembly 231 around the support frame 2321 between the first position and the second position.

[0088] In one embodiment, such as Figure 16 and Figure 17As shown, the support frame 2321 is positioned above the container 1 and spans between the third and fourth sides of the container 1. The support frame 2321 serves as the reference component for the receiving drive device 232, with its two ends fixedly connected to the side walls or frame structure of the third and fourth sides of the container 1, respectively. This ensures that the support frame 2321 is fixed relative to the container 1 and forms a spatial reference for supporting the rotational movement of the receiving assembly 231 within the entire receiving system. In one example, the support frame 2321 has a fulcrum for connecting the linkage assembly 2323, allowing the receiving assembly 231 to rotate around the fulcrum under the influence of the linkage assembly 2323. In another example, the support frame 2321 may be configured as a vertically extending metal rod to ensure sufficient structural strength to support the weight of the receiving assembly 231 and any 3D components it may receive, and to provide stable pivot support during the rotation of the receiving assembly 231.

[0089] Please see Figure 18 and Figure 19 ,in, Figure 18 This application is displayed. Figure 2 The schematic diagram of the connector driving structure in the illustrated embodiment is shown. Figure 19 This application is displayed. Figure 3 The schematic diagram of the connector driving structure in the illustrated embodiment is shown. Figure 18 and Figure 19 As shown, the connector drive structure 2322 includes a lifting guide rail 23221, a lifting slider 23222, and an associate part 23223. The lifting guide rail 23221 is disposed on the back of the Z-axis moving mechanism 3. The lifting slider 23222 can move up and down along the lifting guide rail 23221. The associate part 23223 connects the lifting slider 23222 and the linkage assembly 2323.

[0090] In some examples, the connecting part 23223 can be fixedly connected to the lifting slider 23222 by means of connection such as screwing or bonding, and can be movably connected to the second end of the connecting rod assembly 2323 by means of connection such as pivoting or hinge. In some examples, the connecting part 23223 can be configured as an L-shaped plate, with its first end movably connected to the connecting rod assembly 2323 and its second end fixedly connected to the lifting slider 23222.

[0091] Specifically, the lifting guide rail 23221 provides precise vertical guidance for the lifting slider 23222. When the lifting slider 23222 moves linearly up and down along the lifting guide rail 23221, it transmits power to the connecting rod assembly 2323 through the connecting part 23223, thereby causing the connecting rod assembly 2323 to rotate around the fulcrum on the support frame 2321. Further, since the first end of the connecting rod assembly 2323 is connected to the receiving assembly 231, the rotation of the connecting rod assembly 2323 pushes and pulls the receiving assembly 231 to rotate. Thus, the linear vertical displacement of the lifting slider 23222 along the lifting guide rail 23221 is converted into the swinging motion of the receiving assembly 231 around the support frame between a first position and a second position through the power transmission of the connecting part 23223 and the connecting rod assembly 2323. In some examples, the upper and lower ends of the lifting guide rail 23221 are provided with limit structures to prevent excessive movement of the lifting slider 23222.

[0092] exist Figure 2 and Figure 16 In the embodiment shown, when the lifting slider 23222 drives the second end of the connecting part 23223 and the linkage assembly 2323 to rise along the lifting guide rail 23221, it can drive the connecting component assembly 231 to switch to Figure 16 The first position is shown; at this time, the lifting slider 23222 drives the second end of the connecting part 23223 and the linkage assembly 2323 along the... Figure 16 When the arrow points downwards, it can drive the connector assembly 231 to switch to... Figure 2 The second position shown.

[0093] exist Figure 3 and Figure 17 In the embodiment shown, when the lifting slider 23222 drives the second end of the connecting part 23223 and the linkage assembly 2323 to rise along the lifting guide rail 23221, it can drive the connecting component assembly 231 to switch to Figure 3 The second position shown; at this time, the lifting slider 23222 drives the second end of the connecting part 23223 and the linkage assembly 2323 along the... Figure 3 When the arrow points downwards, it can drive the connector assembly 231 to switch to... Figure 17 The first position shown.

[0094] It should be noted that the connector drive structure 2322 serves as the power input source for driving the connector assembly 231 to rotate around the fulcrum on the support frame. Its lifting and lowering motion along the lifting guide rail 23221 can be directly derived from the motion of the Z-axis moving mechanism 3 itself, or it can be controlled by an independent drive unit.

[0095] In one embodiment, such as Figure 3 , Figure 17 and Figure 19As shown, the connector drive structure 2322 also includes a linkage unit, which connects the mounting base 31 and the lifting slider 23222. When the mounting base 31 rises along the Z-axis moving mechanism 3, the linkage unit drives the lifting slider 23222 to rise along the lifting guide rail 23221. In other words, the linkage unit constitutes a mechanical linkage relationship between the mounting base 31 and the lifting slider 23222, making the lifting motion of the lifting slider 23222 synchronized with the lifting motion of the building plate 21. In this embodiment, the mounting base 31 outputs the power of the lifting motion to the lifting slider 23222 through the linkage unit, and then the lifting slider 23222 transmits the power to the associated part 23223 fixedly connected to it.

[0096] In one example, the linkage is configured as a rigid connector, with its first end fixedly connected to the third or fourth side of the mounting base 31, and its second end fixedly connected to the lifting slider 23222 or a connecting block integrally formed with the lifting slider 23222. When the Z-axis moving mechanism 3 drives the mounting base 31 to rise or fall linearly in the vertical direction, the lifting slider 23222 is forced to rise or fall synchronously with the mounting base 31 along the lifting guide rail 23221 through the direct push and pull of the linkage.

[0097] The above embodiment allows the drive source of the receiving drive structure 2322 to be directly derived from the Z-axis moving mechanism 3 itself, thus eliminating the need for a separate power unit for the rotation of the receiving assembly 231. After the printing operation is completed, when the control device 5 controls the Z-axis moving mechanism 3 to raise the build plate 21 so that the ejector plate is in the ejector position for ejection operation, the upward movement of the mounting base 31 is synchronously converted into the upward movement of the lifting slider 23222 through the linkage, thereby driving the receiving assembly 231 to switch to the position. Figure 3 In the second position shown, prepare for receiving the 3D component. Conversely, when the build plate 21 descends after the component removal is completed to begin a new round of printing, the mounting base 31 drives the lifting slider 23222 to descend synchronously via the linkage, thereby driving the receiving assembly 231 to switch from the second position to... Figure 17 The first position is shown. In short, when the ejector plate 221 is in the ejector position, the receiving assembly 231 is naturally in the second position; when the ejector plate 221 is in the initial position, the receiving assembly 231 is naturally in the first position. This embodiment achieves automated coordination of ejection and receiving actions during the part removal process through simple and reliable mechanical linkage, simplifying the system structure and control logic.

[0098] In one embodiment, such as Figure 2 , Figure 16 and Figure 18As shown, the receiving component driving structure 2322 further includes a lifting drive unit 23224, which drives the lifting slider 23222 to move up and down along the lifting guide rail 23221 to rotate the receiving component assembly 231. In other words, the lifting drive unit 23224 acts as an independent driving unit, providing an active and controllable power source for the receiving component driving structure 2322. In some implementations, the output end of the lifting drive unit 23224 is directly or through a transmission mechanism connected to the lifting slider 23222, so that when the lifting drive unit 23224 is activated, the driving force it generates will directly act on the lifting slider 23222, thereby driving the lifting slider 23222 to perform precise vertical lifting and lowering along the lifting guide rail 23221 independently of the Z-axis moving mechanism 3 and the mounting base 31.

[0099] The above embodiment makes the control of the rotational movement of the receiving assembly 231 independent of the control of the lifting movement of the building block 21. The control device 5 can program and control the lifting drive unit 23224 separately, thereby flexibly planning the action sequence of the receiving assembly 231. For example, after the printing operation is completed, the control device 5 can first instruct the lifting drive unit 23224 to work, drive the lifting slider 23222 to descend, and then drive the receiving assembly 231 to switch to the building block 21. Figure 2 The second position shown completes the receiving preparation; after the ejector plate 221 moves to the ejection position and completes the ejection action, the lifting drive unit 23224 is instructed to drive the lifting slider 23222 to rise, thereby driving the receiving assembly 231 from... Figure 2 The second position shown rotates back to Figure 16 The first position is shown. This embodiment achieves autonomous driving and control of the receiving action by setting an independent lifting drive unit 23224, which improves the timing arrangement flexibility of the collaborative operation of various modules in the system.

[0100] In one embodiment, such as Figure 18 As shown, the lifting drive unit 23224 includes a transmission belt 23225 and a drive member 23226. The transmission belt 23225 is arranged parallel to the lifting guide rail 23221 and connected to the connecting part 23223. The drive member 23226 is connected to the transmission belt 23225 to drive the transmission belt 23225 to rotate so as to drive the lifting slider 23222 to perform lifting and lowering movements.

[0101] In one example, such as Figure 18As shown, the transmission belt 23225 is tensioned along the vertical direction and can be fixedly connected to both the connecting part 23223 and the lifting slider 23222 via a connecting structure, so that the movement of the transmission belt 23225 can be transmitted to the lifting slider 23222. In one example, the drive member 23226 is mounted at a fixed position on the Z-axis moving mechanism 3, and the transmission belt 23225 is sleeved on its output shaft. Specifically, when the control device 5 issues a movement command to the drive member 23226, the drive member 23226 starts and drives its output shaft to rotate, thereby driving the transmission belt 23225 to rotate cyclically, and then driving the lifting slider 23222 to move up and down along the lifting guide rail 23221. The drive member 23226 can be configured as a rotary motor, for example.

[0102] Please see Figure 20 and Figure 21 ,in, Figure 20 This application is displayed. Figure 2 The schematic diagram of the connector assembly in the embodiment shown is as follows. Figure 21 This application is displayed. Figure 3 A schematic diagram of the connector assembly in the illustrated embodiment. Figure 20 and Figure 21 As shown, the connector assembly 231 includes a connector body 2311 and a fixing part 2312. The connector body 2311 is used to receive the 3D component, and the fixing part 2312 is used to connect the connector body 2311 and the connecting rod assembly 2323.

[0103] In one embodiment, the fixing part 2312 serves as a force-transmitting component between the connector assembly 231 and the linkage assembly 2323, with one end fixedly connected to the connector body 2311 and the other end movably connected to the linkage assembly 2323. In some examples, the fixing part 2312 may be configured as a sheet metal to have sufficient rigidity and strength to reliably transmit the driving force from the linkage assembly 2323 while supporting the weight of the connector body 2311 and its internal 3D components.

[0104] In one embodiment, the receiving body 2311, as a component that directly contacts and bears the weight of the 3D component detached from the construction plane 212, is structurally designed to stably and reliably receive the falling component and guide it to the intended collection location. In one example, the receiving body 2311 is configured to include a receiving surface with a size greater than or equal to the projected area of ​​the construction plane 212 in the vertical direction, ensuring that all detached 3D components fall within the receiving surface. In some examples, the receiving body 2311 may be configured as a material with sufficient structural strength, such as metal, engineering plastic, or composite material, to withstand the impact of the 3D component. In some examples, the surface of the receiving body 2311 may be smoothed or have a buffer layer provided to reduce collision damage when the 3D component falls.

[0105] In one embodiment, such as Figure 20 As shown, the receiving body 2311 is configured as a receiving hopper with an opening, wherein the receiving hopper rotates to... Figure 2 In the second position shown, the opening is tilted downwards towards the first side. The design of the receiving hopper in this embodiment provides excellent guidance for the 3D components. After the 3D component is ejected, it falls into the receiving hopper and slides out of the opening under gravity, eventually gathering, for example, in a collection basket for collecting 3D components, thereby improving the automation level of the 3D printing equipment.

[0106] In another embodiment, please refer to Figure 22 This application is displayed as such. Figure 21 The illustrated embodiment shows a schematic diagram of the disassembled structure of the connector body. (See diagram below.) Figure 22 As shown, the receiving body 2311 is configured to include a magnetic suction part 23111 and a receiving tray 23112 that can be detached from the magnetic suction part 23111. In this embodiment, the split design of the receiving body 2311 combines ease of operation and simple maintenance. Specifically, on the one hand, the magnetic fixing method allows for tool-free installation and removal of the receiving tray 23112, facilitating quick loading and unloading of 3D components or tray replacement during printing intervals. On the other hand, the receiving tray 23112, as an independent component, can be removed separately for cleaning to remove residual resin material. In some examples, the operator can prepare multiple receiving trays 23112 for alternating use to further improve printing efficiency.

[0107] In one embodiment, the two sides of the magnetic suction part 23111 can be fixedly disposed on the fixing part 2312 by means of screwing or other methods to form an adsorption base with stable magnetic adsorption force. Figure 22 In the example shown, the upper surface of the magnetic suction part 23111 forms a flat adsorption plane for adsorbing the receiving tray 23112.

[0108] In one embodiment, the receiving tray 23112 is a detachable component that directly receives 3D components, and its overall shape and size are adapted to the adsorption plane of the magnetic suction part 23111. In one example, the receiving tray 23112 is configured as a ferromagnetic material, such as low-carbon steel. When the operator places the receiving tray 23112 on the adsorption plane of the magnetic suction part 23111, the two can be quickly and firmly adsorbed and fixed under the action of magnetic force. When it is necessary to remove the receiving tray 23112, the operator only needs to overcome the magnetic adsorption force to quickly separate the two.

[0109] In one embodiment, such as Figure 22 As shown, the magnetic suction part 23111 is provided with a limiting part 23113 to prevent the receiving tray 23112 from falling off during rotation. Figure 22 In the example shown, the limiting part 23113 is configured as a protrusion structure on the magnetic suction part 23111. Correspondingly, the receiving tray 23112 is provided with a recessed structure 23114 adapted to the protrusion structure. When the receiving tray 23112 is installed on the magnetic suction part 23111, the protrusion structure is inserted into the recessed structure 23114.

[0110] Please see Figure 23 and Figure 24 ,in, Figure 23 This application is displayed. Figure 2 The schematic diagram of the linkage assembly in the illustrated embodiment is shown. Figure 24 This application is displayed. Figure 3 A schematic diagram of the linkage assembly in the illustrated embodiment. Figure 23 and Figure 24 As shown, the linkage assembly 2323 includes a first rod portion 23231, a second rod portion 23232, and a third rod portion 23233. The first rod portion 23231 connects the connecting portion 23223 and the fixing portion 2312. The second rod portion 23232 connects the support frame 2321 and the fixing portion 2312. The third rod portion 23233 connects the first rod portion 23231 and the second rod portion 23232. In this embodiment, the linkage assembly 2323 serves as a motion conversion medium, converting the vertical linear displacement of the connecting portion 23223 into the rotational oscillation of the fixing portion 2312, thereby driving the connector body 2311 to switch between a first position and a second position.

[0111] It should be noted that, Figure 23 and Figure 24 The illustration uses only the link assembly 2323 configured on the fourth side of the connector body 2311 as an example and should not be construed as a limitation of this application. In practical applications, the link assemblies 2323 are symmetrically arranged on the third and fourth sides of the connector body 2311. Furthermore, in Figure 23 and Figure 24In order to facilitate the demonstration of the specific structure of the linkage assembly 2323, the structure of the support frame 2321 has been simplified, and only the part where the support frame 2321 is connected to the second rod part 23232 (i.e., the fulcrum described in the aforementioned embodiment) is shown.

[0112] In one embodiment, such as Figure 23 As shown, the first rod portion 23231 connects the first end of the connecting portion 23223 and the first end of the fixing portion 2312, and the second rod portion 23232 connects the second end of the support frame 2321 and the second end of the fixing portion 2312, so that the receiving component drive structure 2322 can drive the receiving component assembly 231 to rotate when it rises. Figure 16 The first position shown, and the fact that the receiving assembly 231 can be rotated during descent, are also mentioned. Figure 2 The second position shown.

[0113] In the above embodiment, the first end of the fixing part 2312 is hinged to one end of the first rod part 23231, and the second end of the fixing part 2312 is hinged to one end of the second rod part 23232. Meanwhile, the other end of the first rod part 23231 is hinged to the connecting part 23223, and the other end of the second rod part 23232 is hinged to the support frame 2321. The hinge point between the second rod part 23232 and the support frame 2321 is the fulcrum described in the previous embodiment, and the connecting component assembly 231 rotates around this fulcrum between a first position and a second position.

[0114] Specifically, when the connector drive structure 2322 is driven to rise, the connecting part 23223 rises accordingly and pulls the second end of the first rod 23231 to rise. At this time, due to the constraint of the second rod 23232 and the third rod 23233, the fixing part 2312 is forced to drive the connector assembly 231 to rotate counterclockwise around the fulcrum until the connector assembly 231 retracts to... Figure 16 The first position is shown. Conversely, when the connector drive structure 2322 descends, the connecting part 23223 moves downward accordingly, pulling the first end of the first rod 23231 downward. At this time, due to the constraint of the second rod 23232 and the third rod 23233, the fixing part 2312 is forced to drive the connector assembly 231 to rotate clockwise around the fulcrum until the connector assembly 231 rotates to the position shown. Figure 2 The second position shown.

[0115] In another embodiment, such as Figure 24 As shown, the first rod portion 23231 connects the second end of the connecting portion 23223 and the fixing portion 2312, and the second rod portion 23232 connects the first end of the support frame 2321 and the fixing portion 2312, so that the receiving component drive structure 2322 can drive the receiving component assembly 231 to rotate to the second position when rising and can drive the receiving component assembly 231 to rotate to the first position when falling.

[0116] In the above embodiment, the first end of the fixing part 2312 is hinged to one end of the second rod part 23232, and the second end of the fixing part 2312 is hinged to the first end of the first rod part 23231. At the same time, the second end of the first rod part 23231 is hinged to the connecting part 23223, and the other end of the second rod part 23232 is hinged to the support frame 2321.

[0117] Specifically, when the connector drive structure 2322 is driven to rise, the connecting part 23223 rises accordingly and pulls the second end of the first rod 23231 to rise. At this time, due to the constraint of the second rod 23232 and the third rod 23233, the fixing part 2312 is forced to drive the connector assembly 231 to rotate counterclockwise around the fulcrum until the connector assembly 231 rotates to... Figure 3 The second position is shown. Conversely, when the connector drive structure 2322 descends, the connecting part 23223 moves downward accordingly, pulling the first end of the first rod 23231 downward. At this time, due to the constraint of the second rod 23232 and the third rod 23233, the fixing part 2312 is forced to drive the connector assembly 231 to rotate clockwise around the fulcrum until the connector assembly 231 retracts to... Figure 17 The first position shown.

[0118] In summary, the 3D printing equipment and its component retrieval system disclosed in this application provide an automated, stable, and efficient component retrieval and placement solution through an integrated design that combines component removal and receiving functions. This not only enables automatic and non-destructive removal of 3D components from the build plate and safe and reliable reception, but also ensures efficient coordination between the entire component retrieval process and the printing workflow, thereby improving the operational efficiency of the 3D printing equipment.

[0119] Firstly, regarding the ejection mechanism, by creating through holes in the build plate and engaging with a top block on the ejection plate, and by rotatably mounting the ejection plate on the back of the build plate, a smooth and uniform ejection of the 3D component is achieved. Specifically, the top block gradually passes through the through holes and protrudes from the first side to the second side of the build plate, allowing the 3D component to be gradually peeled off from the edges, effectively dispersing the peeling stress and significantly reducing the risk of warping or breakage. The elastic component in the ejection mechanism allows the ejection plate to automatically and elastically return to its initial position after the ejection action, preparing it for the next printing cycle. Furthermore, the cantilever on the Z-axis movement mechanism triggers the ejection plate to rotate to the ejection position, achieving automatic and seamless connection between the ejection action and the end signal of the printing process.

[0120] Secondly, regarding component receiving, a component receiving drive device, comprising a support frame, a component receiving drive structure, and a linkage assembly, precisely converts the lifting motion into the rotational motion of the component receiving assembly. This ensures that when the component is detached, the component receiving assembly automatically and reliably rotates to a second position below the construction plate to receive the falling 3D component. This design effectively prevents the 3D component from falling into the container and contaminating the resin, and ensures the safety and cleanliness of the component retrieval process. The component receiving drive structure can either use a linkage unit and a Z-axis moving mechanism for mechanical linkage, achieving complete synchronization of detachment and receiving and simplifying the structure; or it can use an independent lifting drive unit to achieve independent and flexible control of the timing of the receiving action, thus adapting to more complex work processes.

[0121] Furthermore, designing the receiving assembly as a receiving hopper provides guidance and collection for 3D components, allowing them to slide out automatically along its sloping opening for convenient centralized processing. Designing the receiving assembly as a magnetically attached, detachable receiving tray facilitates quick removal of 3D components and easy cleaning or replacement of the tray by the operator.

[0122] The above embodiments are merely illustrative of the inventive essence and beneficial effects of this application, and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the principles and scope of this application. Therefore, all equivalent modifications or alterations achieved by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A pick-up system for a 3D printing device, the 3D printing device comprising a container and a Z-axis moving mechanism, characterized in that, a build plate fixed to a mount of the Z-axis moving mechanism, having a build plane for forming a 3D component and a mounting structure for fitting the mount; a plurality of through holes are formed on the build plane; a pick-off mechanism disposed between the build plate and the mount, capable of moving up and down with the Z-axis moving mechanism, comprising a pick-off plate disposed on the back of the build plane and having a plurality of pick-off blocks; when the pick-off plate moves to a pick-off position, the pick-off blocks correspondingly pass through the through holes and protrude from the build plane to pick off the 3D component; a pick-up mechanism disposed between the pick-off mechanism and the container, comprising a pick-up assembly and a pick-up driving device for driving the pick-up assembly to rotate between a first position and a second position; when the pick-off plate is in the pick-off position, the pick-up assembly can be switched from the first position which does not interfere with the printing operation to the second position to receive the picked-off 3D component.

2. The retrieval system of claim 1, wherein, The pick-off mechanism further comprises a resilient assembly disposed on the second side of the build plane, the resilient assembly comprising a frame fixed to the build plane and a resilient member disposed on the frame, the resilient member being used to drive the pick-off plate to open relative to the build plane by elastic restoring force to reset to an initial position; when the pick-off plate is in the initial position, the pick-up assembly is in the first position to be away from the build plane.

3. The retrieval system of claim 2, wherein, The pick-off plate comprises: a plate body located on the back of the build plane for disposing the pick-off blocks; a first connecting assembly located on the first side of the plate body for hingedly connecting the plate body to the first side of the build plane; a second connecting assembly located on the second side of the plate body for elastically connecting the plate body to the second side of the build plane through the resilient assembly, so that the plate body can rotate around the first connecting assembly to switch between the pick-off position and the initial position.

4. The retrieval system of claim 3, wherein, The first connecting assembly comprises a support portion fixed on the back of the build plane and a rotating shaft transversely arranged on the support portion and connected to the plate body.

5. The retrieval system of claim 3, wherein, The second connecting assembly comprises a first connecting portion integrally formed for fixedly connecting the second side of the plate body and a second connecting portion for movably connecting the resilient member.

6. The retrieval system of claim 5, wherein, The resilient member comprises a fixed pin connected to the second connecting portion through a pin shaft and a elastic portion sleeved on the fixed pin; when the plate body is in the pick-off position, the elastic portion is limited by the second connecting portion and the frame to generate the elastic restoring force to push the plate body away from the build plane.

7. The retrieval system of claim 1, wherein, The through holes are configured as strip-shaped holes arranged in a rectangular array extending from the first side of the build plane to the second side; the number and position of the pick-off blocks correspond to the through holes.

8. The retrieval system of claim 7, wherein, In the transverse direction, the width of the through holes and the spacing between adjacent two through holes are both smaller than the width occupied by the 3D component on the build plane.

9. The retrieval system of claim 1, wherein, The Z-axis moving mechanism comprises a pair of cantilevers fixedly arranged at a preset position, for contacting the second side of the piece removing plate when the Z-axis moving mechanism drives the build plate to ascend, so as to switch the piece removing plate to the piece removing position.

10. The retrieval system of claim 1, wherein, The piece driving device comprises: a support frame, which is arranged across the third side and the fourth side of the container; a piece driving structure, which is arranged on the Z-axis moving mechanism in a liftable manner; a linkage assembly, which is associated with the support frame, the piece assembly and the piece driving structure, for converting the lifting movement of the piece driving structure into the rotary movement of the piece assembly around the support frame between the first position and the second position.

11. The retrieval system of claim 10, wherein, The piece driving structure comprises a lifting guide arranged on the back of the Z-axis moving mechanism, a lifting slider which is capable of lifting along the lifting guide, and an association part connecting the lifting slider and the linkage assembly.

12. The retrieval system of claim 11, wherein, The piece driving structure further comprises a linkage part connecting the mounting seat and the lifting slider, and when the mounting seat ascends along the Z-axis moving mechanism, the linkage part drives the lifting slider to ascend along the lifting guide.

13. The retrieval system of claim 11, wherein, The piece driving structure further comprises a lifting driving part for driving the lifting slider to lift along the lifting guide, so as to drive the piece assembly to rotate.

14. The retrieval system of claim 13, wherein, The lifting driving part comprises a transmission belt which is arranged in parallel with the lifting guide and connected with the association part, and a driving member which is connected with the transmission belt for driving the transmission belt to rotate, so as to drive the lifting slider to lift.

15. The retrieval system of claim 10, wherein, The piece assembly comprises a piece body for receiving the 3D component, and a fixing part for connecting the piece body and the linkage assembly.

16. The retrieval system of claim 15, wherein, The piece body is configured to comprise a magnetic attraction part and a piece disc which is detachable from the magnetic attraction part.

17. The retrieval system of claim 16, wherein, The magnetic attraction part is provided with a limiting part for preventing the piece disc from falling off when rotating.

18. The retrieval system of claim 15, wherein, The piece body is configured to have a piece bucket with an opening, and when the piece bucket rotates to the second position, the opening is inclined downward toward the first side.

19. The retrieval system of claim 15, wherein, The linkage assembly comprises a first rod part connecting the association part and the fixing part, a second rod part connecting the support frame and the fixing part, and a third rod part connecting the first rod part and the second rod part.

20. The retrieval system of claim 19, wherein, The first rod part connects the first end of the association part and the fixing part, and the second rod part connects the second end of the support frame and the fixing part, so that when the piece driving structure ascends, it can drive the piece assembly to rotate to the first position, and when it descends, it can drive the piece assembly to rotate to the second position.

21. The retrieval system of claim 19, wherein, The first rod part connects the second end of the association part and the fixing part, and the second rod part connects the first end of the support frame and the fixing part, so that when the piece driving structure ascends, it can drive the piece assembly to rotate to the second position, and when it descends, it can drive the piece assembly to rotate to the first position.

22. A 3D printing device, characterized by The piece removing system comprises: a container for containing light-curing material; a piece removing system according to any one of claims 1-21, comprising a build plate for forming a 3D component; a Z-axis moving mechanism for driving the build plate to move in the Z-axis direction to adjust the gap between the build plate and the printing reference surface; an energy radiation system for irradiating the light-curing material filled in the gap to obtain a solidified layer; a control device connected with the Z-axis moving mechanism, the energy radiation system and the taking-out system, for controlling the Z-axis moving mechanism and the energy radiation system to work cooperatively to attach the 3D component cumulatively formed by solidification on the build plane, and for controlling the taking-out system to top off and receive the 3D component after the printing is completed.

Images